Revert "Disable auto compaction on platforms that can't support it"

This reverts commit 63ad55cd882e4010fe313d271af006a430b5ffa8.

Revert "Disable read barrier on explicit compaction request"

This reverts commit 490b57783d80f0c5f7882c66d9fb6aa02713c9a5.

1 files changed, 2 insertions, 1 deletions

diff --git a/gc.rb b/gc.rb
index 4e0faaf00d..d2b0d8e86e 100644
--- a/gc.rb
+++ b/gc.rb
@@ -199,7 +199,8 @@ module GC
   end
 
   def self.compact
-    Primitive.gc_compact
+    Primitive.gc_start_internal true, true, true, true
+    Primitive.gc_compact_stats
   end
 
   # call-seq: